CN113089448A

CN113089448A - Synchronous jacking equipment for dismantling cement concrete pavement slab

Info

Publication number: CN113089448A
Application number: CN202110409250.0A
Authority: CN
Inventors: 李思李; 田波; 谢晋德; 权磊; 李立辉; 张盼盼; 何哲
Original assignee: Research Institute of Highway Ministry of Transport
Current assignee: Research Institute of Highway Ministry of Transport
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-07-09
Anticipated expiration: 2041-04-16
Also published as: CN113089448B

Abstract

The invention relates to the technical field of pavement restoration, in particular to synchronous jacking equipment for dismantling a cement concrete pavement slab, which comprises at least two beam assemblies arranged side by side and jacking devices abutted against two ends of the beam assemblies; the beam assembly is inverted 'n' -shaped, and comprises a beam main body, and a plurality of connecting seats are fixedly connected to the beam main body. The invention can achieve the purpose of separating the cement concrete slab surface from the roadbed.

Description

Synchronous jacking equipment for dismantling cement concrete pavement slab

Technical Field

The invention relates to the technical field of pavement restoration, in particular to synchronous jacking equipment for dismantling a cement concrete pavement slab.

Background

The increase of traffic volume and overload phenomena increase the number of heavy-duty vehicles, so that the phenomenon of the damage of the cement concrete pavement slab is increased. Particularly, the cement concrete pavement slab of the airport runway is easy to be damaged when being rolled and rolled by planes in the process of sliding, taking off and landing all the year round, and the quality requirement of the pavement slab of the airport runway is higher, thereby being particularly important for the maintenance of the damaged slab surface. In the prior art, when a damaged road surface is maintained, a large amount of old road surfaces need to be crushed, the roadbed needs to be compacted, and the base layer and the surface layer need to be laid again, so that the workload is large, the traffic is difficult to maintain during construction, and the renovation effect is difficult to achieve the expectation. Therefore, the invention provides a new scheme, which is characterized in that the damaged pavement is integrally cut, the damaged pavement is integrally removed from an airport runway, a panel with the same size and maintained is replaced to the original damaged panel, when the damaged panel is removed, the panel is difficult to separate from a roadbed due to the adhesion effect of the bottom of the panel and the roadbed, and the technical problem is not solved in the prior art.

Disclosure of Invention

The invention aims to provide synchronous jacking equipment for dismantling a cement concrete pavement slab, which is used for solving the problems and achieving the purpose of separating the cement concrete slab from a roadbed.

In order to achieve the purpose, the invention provides the following scheme:

a synchronous jacking device for dismantling a cement concrete pavement slab comprises at least two cross beam assemblies arranged side by side and jacking devices abutted to two ends of the cross beam assemblies;

the beam assembly is inverted 'n' -shaped, and comprises a beam main body, and a plurality of connecting seats are fixedly connected to the beam main body.

Preferably, the beam assembly comprises bent plates fixedly connected to two ends of the beam main body, and the bent plates are of a C-shaped structure.

Preferably, one end, far away from the beam main body, of the bent plate is fixedly connected with a hoisting supporting plate, and the jacking device is arranged below the hoisting supporting plate.

Preferably, the jacking device is a hydraulic cylinder.

Preferably, the beam main body is fixedly connected with a plurality of lifting lugs.

Preferably, the connecting seat is provided with a plurality of through holes.

A method of using a synchronous jacking apparatus for the demolition of concrete decking panels, comprising the steps of:

the method comprises the following steps: placing the two beam assemblies on the damaged panel, adjusting the positions of the beam assemblies until the two beam assemblies trisect the damaged panel;

step two: driving expansion bolts into the damaged panel through the connecting seats to fix the two beam assemblies and the damaged panel;

step three: the four hydraulic cylinders are placed below the hoisting support plate, the extending ends of the hydraulic cylinders are adjusted to be just in contact with the bottom of the hoisting support plate, and the four hydraulic cylinders are started to lift.

The invention has the following technical effects: the bottom of the beam main body is tightly contacted with the damaged panel, the expansion bolts are driven downwards into the connecting seats to fixedly connect the panel and the beam main body, the hydraulic cylinders positioned at the two ends of the beam assembly synchronously lift up to separate the panel from the roadbed, and the dismantling work of the damaged panel is completed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram according to a second embodiment;

FIG. 3 is a left side view of the jacking assembly;

FIG. 4 is a schematic view of a third structure of the embodiment;

FIG. 5 is a front view of the hoist;

fig. 6 is an isometric view of the lifting device.

Wherein, 1, a beam component; 101. a hoisting support plate; 102. bending a plate; 103. a connecting seat; 104. lifting lugs; 105. a beam main body; 2. a hydraulic cylinder; 3. a damaged panel; 4. a jacking assembly; 401. a base; 402. a first link; 403. hinging a shaft; 404. a second link; 405. a chute; 5. a hoisting assembly; 501. a slide base; 502. a wedge block; 503. inserting plates; 504. and (5) hoisting the base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The first embodiment is as follows:

referring to fig. 1, the invention relates to a synchronous jacking device for dismantling a cement concrete pavement slab, which comprises at least two cross beam assemblies 1 arranged side by side and jacking devices abutted to two ends of each cross beam assembly 1;

the beam assembly 1 is in an inverted 'n' -shape, the beam assembly 1 comprises a beam main body 105, and a plurality of connecting seats 103 are fixedly connected to the beam main body 105. The middle part of the inverted-U-shaped beam assembly 1 is in contact with the damaged panel 3, the two ends of the beam assembly 1 exceed the damaged panel 3 and are higher than the undamaged panel, and the position of a jacking device is reserved.

In a further optimized scheme, the beam assembly 1 comprises bent plates 102 fixedly connected to two ends of a beam main body 105, and the bent plates 102 are in a C-shaped structure.

In a further optimized scheme, one end, far away from the beam main body 105, of the bent plate 102 is fixedly connected with a hoisting supporting plate 101, and a jacking device is arranged below the hoisting supporting plate 101.

In a further optimized scheme, the jacking device is a hydraulic cylinder 2. The hydraulic cylinders 2 can provide huge jacking force, and the four hydraulic cylinders 2 can lift the damaged panel 3 from the roadbed at the same time.

In a further optimized scheme, the beam main body 105 is fixedly connected with a plurality of lifting lugs 104. The lifting lugs 104 facilitate the crane to lift and remove the damaged panel 3 separated from the subgrade.

Further optimize the scheme, connecting seat 103 has seted up a plurality of through-holes. The through holes are used for driving expansion bolts downwards, and the expansion bolts firmly connect the damaged panel 3 with the beam assembly 1.

the method comprises the following steps: placing the two beam assemblies 1 on the damaged panel 3, adjusting the positions of the beam assemblies 1 until the two beam assemblies 1 trisect the damaged panel 3;

step two: driving expansion bolts into the damaged panel 3 through the connecting seats 103 to fix the two beam assemblies 1 and the damaged panel 3;

step three: the four hydraulic cylinders 2 are placed below the lifting supporting plate 101, the extending ends of the hydraulic cylinders 2 are adjusted to be just in contact with the bottom of the lifting supporting plate 101, and the four hydraulic cylinders 2 are started to lift.

Example two:

referring to fig. 2-3, the difference between the jacking assembly 4 of the present embodiment and the first embodiment is only that, the jacking device includes the jacking assembly 4, the jacking assembly 4 includes a first connecting rod 402 and a second connecting rod 404 that are abutted against the lower portions of the two lifting support plates 101, a chute 405 is provided at one end of the first connecting rod 402 and the second connecting rod 404 that is far away from the lifting support plates 101, one ends of the first connecting rod 402 and the second connecting rod 404 that are close to the lifting support plates 101 are hinged to a hinge shaft 403 together, a base 401 is fixedly connected below the hinge shaft 403, two ends of the upper portion of the base 401 are fixedly connected with hydraulic cylinders 2, and the.

Base 401 of this embodiment is pressed on undamaged panel, base 401's area is greater than the bottom surface area of pneumatic cylinder 2 far away, the great bottom surface area of base 401 prevents that pneumatic cylinder 2 will not be damaged panel pressure in jacking in-process, because pneumatic cylinder 2 is greater than jack-up layer board 101 to the distance of articulated shaft 403, according to lever principle, pneumatic cylinder 2 only needs to provide the jacking force that is less than pneumatic cylinder 2 in embodiment one and just can separate damaged panel and road bed, the contained angle of first connecting rod 402 and second connecting rod 404 and base 401 increases gradually in the jacking process, beam assembly 1 slides to being close to pneumatic cylinder 2 one end for first connecting rod 402 and second connecting rod 404, its actual direction of motion is vertical ground upwards.

Example three:

referring to fig. 4 to 6, the hoisting device 5 of the present embodiment is different from the first embodiment only in that the jacking device includes a hoisting assembly 5, the hoisting assembly 5 includes two wedges 502 disposed below the hoisting support plate 101, a slide carriage 501 is slidably connected below the wedges 502, a "Contraband" shaped slide groove is disposed inside the slide carriage 501, first slides are disposed on two sides inside the wedges 502, an included angle between each first slide and a bottom surface is sixty degrees, a first slide column is slidably connected in the first slide, a plug board 503 is fixedly connected to the first slide column, a second slide column is fixedly connected below the plug board 503, the second slide column is vertically slidably connected with inside of the slide carriage 501, a hoisting base 504 is fixedly connected above the slide carriage 501, a hydraulic cylinder 2 is fixedly connected inside the hoisting base 504, and an extension end of the hydraulic cylinder 2 is fixedly connected above the plug board 503.

In the embodiment, the damaged panel is lifted by the aid of the crane, the hoisting device 5 is firstly placed below the hoisting support plate 101 by the crane, the hoisting device 5 is manually adjusted to be positioned in the middle of the cross beam assembly 1, meanwhile, the crane is started to lift upwards and the hydraulic cylinder 2 is lifted, when the extending end of the hydraulic cylinder 2 moves downwards, the inserting plate 503 is driven to move downwards, because the included angle between the first slide way and the bottom surface is sixty degrees, the distance of the two wedge-shaped blocks 502 moving towards the two sides is half of the extension distance of the hydraulic cylinder 2, the hydraulic cylinder 2 of the embodiment has smaller load, the jacking function can be realized only by two hydraulic cylinders 2, the beam assembly 1 can be gradually jacked up when the two wedge-shaped blocks 502 move towards the two sides, therefore, the damaged plate surface and the roadbed can be separated, the crane can directly move the lifting device 5 and the damaged plate surface together after the damaged plate surface and the roadbed are separated, and the damaged plate surface can be separated from the roadbed and can be lifted and moved.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a synchronous jacking equipment that is used for cement concrete decking to demolish which characterized in that: the device comprises at least two beam assemblies (1) arranged side by side and jacking devices abutted to two ends of each beam assembly (1);

the beam assembly (1) is in an inverted 'n' -shape, the beam assembly (1) comprises a beam main body (105), and a plurality of connecting seats (103) are fixedly connected to the beam main body (105).

2. A synchronous jacking arrangement for the demolition of cementitious concrete decking panels as claimed in claim 1, wherein: the beam assembly (1) comprises bent plates (102) fixedly connected to two ends of the beam main body (105), and the bent plates (102) are of a C-shaped structure.

3. A synchronous jacking arrangement for the demolition of cementitious concrete decking panels as claimed in claim 2, wherein: one end, far away from the beam main body (105), of the bent plate (102) is fixedly connected with a hoisting supporting plate (101), and the jacking device is arranged below the hoisting supporting plate (101).

4. A synchronous jacking arrangement for the demolition of cementitious concrete decking panels as claimed in claim 3, wherein: the jacking device is a hydraulic cylinder (2).

5. A synchronous jacking arrangement for the demolition of cementitious concrete decking panels as claimed in claim 1, wherein: the beam main body (105) is fixedly connected with a plurality of lifting lugs (104).

6. A synchronous jacking arrangement for the demolition of cementitious concrete decking panels as claimed in claim 1, wherein: the connecting seat (103) is provided with a plurality of through holes.

7. The use of a synchronous jacking arrangement for the demolition of cementitious concrete decking panels as claimed in claim 1 wherein: the method comprises the following steps:

the method comprises the following steps: placing the two beam assemblies (1) on the damaged panel (3), adjusting the positions of the beam assemblies (1) until the two beam assemblies (1) trisect the damaged panel (3);

step two: an expansion bolt is driven into the damaged panel (3) through the connecting seat (103), and the two beam assemblies (1) and the damaged panel (3) are fixed;

step three: the four hydraulic cylinders (2) are placed below the lifting supporting plate (101), the extending ends of the hydraulic cylinders (2) are adjusted to be just in contact with the bottom of the lifting supporting plate (101), and the four hydraulic cylinders (2) are started to lift.